An electronic device includes a battery including a first end portion in a plan view, the first end portion including a first engagement portion, a first case member including an accommodation portion where the battery is accommodated, and a slide member which is held by the first case member and is slidable along the first end portion. The slide member includes a first structure which prevents the slide member from dropping off from the first case member. The slide member can take a first position at which the slide member is in engagement with the first engagement portion and a second position at which the slide member is not in engagement with the first engagement portion as a result of sliding along the first end portion.